EP0796299B1 - Verfahren zum schützen von oberflächen gegen korrosive substanzen - Google Patents

Verfahren zum schützen von oberflächen gegen korrosive substanzen Download PDF

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Publication number
EP0796299B1
EP0796299B1 EP95940918A EP95940918A EP0796299B1 EP 0796299 B1 EP0796299 B1 EP 0796299B1 EP 95940918 A EP95940918 A EP 95940918A EP 95940918 A EP95940918 A EP 95940918A EP 0796299 B1 EP0796299 B1 EP 0796299B1
Authority
EP
European Patent Office
Prior art keywords
process according
styrene
parts
epoxy
styrene copolymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP95940918A
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English (en)
French (fr)
Other versions
EP0796299A1 (de
Inventor
Jozef Roumieux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
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Application filed by Individual filed Critical Individual
Publication of EP0796299A1 publication Critical patent/EP0796299A1/de
Application granted granted Critical
Publication of EP0796299B1 publication Critical patent/EP0796299B1/de
Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/10—Epoxy resins modified by unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00

Definitions

  • the present invention relates to a method of protection of surfaces by treating them using of a composition giving them good resistance to corrosive or aggressive materials such as agents chemical in liquid, gaseous or in the form of smoke, especially strong and weak acids, alkalis, salts, etc.
  • Such protection can be applied under diluted form in primer or in pasty state without diluent or as a binder in a mortar mixed with sand, on concrete, asbestos-cement surfaces, steel, etc.
  • the films formed protective harden by forming a film of protection.
  • this hardening which generally involves phenomena of crosslinking, causes a retraction which causes a lack of adhesion to the substrate.
  • Properties of different thermal expansion and shrinkage of the film protection and substrate also cause, in service, many difficulties of cohesion, which can even lead to delamination.
  • compositions intended for uses different are already known.
  • the present invention aims to provide a process meeting these requirements, and in particular aims to propose the implementation of improved means to protect effectively against chemical reagents, particularly against chemical attacks, in particular alkaline and especially acidic, exterior surfaces and interior, including concrete tanks and reservoirs and steel as they are generally used in the chemical industry. Other applications are good heard also possible, such as protections of buildings.
  • the invention relates to a protection method of surfaces against corrosive material, which rests on the use of a composition consisting of a copolymer opaque and impact resistant polybutadiene / styrene, in solution in a reactive solvent, preferably in styrene, which is mixed at a rate of 1 to 18 parts, and preferably approximately 4 parts, by weight of one vinyl resin or an unsaturated polyester for part by weight of the polystyrene solution, in the presence accelerators or catalysts.
  • the polybutadiene / styrene solution in its solvent is preferably of a concentration such that a suitable fluidity (syrupy) is obtained.
  • a suitable fluidity sirupy
  • the polystyrene / styrene ratio is of the order of 20/70.
  • catalysts will be used of the type of organic oxides such as peroxide methyl ethyl ketone (MEKP) which are well soluble in styrene and in most other solvents entering consideration in the technique according to the invention.
  • MEKP peroxide methyl ethyl ketone
  • the polybutadiene / styrene copolymer in these conditions, binds to the free radicals of the resin vinyl, forming chains of such length that they serve as reinforcement in a matrix constituted by the resin base, which means that the shrinkage upon hardening becomes practically zero or at least negligible, for example of the order of 1%.
  • Products of this type can be obtained in the trade in the form of compositions of the DERAKANE® type the Dow company. These include DERAKANE® from the series 470, 411, 441-400 and compatible.
  • the amount of catalyst in particular, is depending on its nature and the quantities and weight ratios of the aforementioned constituents. It can be easily determined by the practitioner through a few orientation tests.
  • a "mortar" by adding an additive such as sand.
  • an additive such as sand.
  • the proportion of sand used may vary from 1 to 20 parts, and preferably 4 to 9 parts of sand, for part of the composition according to the invention.
  • Others additives may be suitable, in particular derivatives of mats or glass flakes.
  • the addition of a certain amount of a hydraulic binder or cement is possible but not necessary.
  • the shrinkage is reduced to 1% maximum, which reduces the tension during hardening to approximately 1.9 N / mm 2 .
  • the resin according to the invention can be applied in cover on monolithic coverings.
  • the primer can be applied easily by any suitable technique, palette, brush, roller or with a pistol.
  • the resin is then preferably applied to such a primer by techniques appropriate to its consistency.
  • a primer for example, when the resin is present in the form of an aggregate loaded with silica sand and a flame retardant (alumina trihydrate), application can be done by trowelling under a thickness of the order from 15 to 20 mm depending on the resistance required.
  • the glass fibers are preferably fibers 50 mm long with random orientation. It is advantageous to compress the wet resin using a roller to impregnate the glass fiber.
  • the glass fiber mat is applied in the form of successive parallel strips of 120 mm with overlaps of the order of 50 mm at the joints.
  • additional amounts of resin are added to completely moisten the entire glass fiber. When all of the glass fibers are so wetted, the surface is worked with a roller or other suitable tool to remove any captive air bubbles.
  • a DERAKANE® 470 resin is mixed in the proportion of 4 parts per part of copolymer polybutadiene / styrene in styrene in the ratio 20 / 70 (composition A).
  • the preparation can be applied directly by any suitable means (roller, brush, etc.) at a rate of 350 g / m 2 on a smooth and clean surface, for example of concrete, constituting a wall, a floor or even a tank.
  • the surface After a drying time (hardening) of about an hour, the surface can receive a mortar.
  • This mortar is prepared as follows:
  • composition A In a mixture of composition A with 2% of the hardener B, pour into a Zyclos type mixer or BEBA, at the rate of 1 part of the mixture A + B, 9 parts of the component C formed by an acid-washed and dry mixture of a quartz sand aggregate.
  • the application of this mortar, with a final smoothing, is carried out according to the rules of the art up to a thickness of up to 10 mm in application vertical.
  • Composition A is identical to that of the example 1, except for the addition of an adequate amount of a thixotropic agent.
  • This mortar can be applied using a trowel or spatula and smoothing plate up to 5 mm thick. However, an equalization irregularities up to about a 15 mm trough can be done without difficulty.
  • compositions of resins intended for horizontal application of respectively 15, 10 and 5 mm can be made under form of a resin / quartz sand mixture in a ratio 1/9, 1/7 and 1/5 by weight.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)

Claims (10)

  1. Verfahren zum Schutz von Oberflächen vor korrosiven Materialien, dadurch gekennzeichnet, daß eine Zusammensetzung verwendet wird, die aus einem undurchsichtigen und stoßfesten, in einem reaktiven Lösungsmittel gelösten Butadien/Styrol-Copolymer besteht, zu dem 1 bis 18 Gewichtsteile eines Vinylharzes oder eines ungesättigten Polyesters auf 1 Gewichtsteil der Polybutadien/Styrol-Copolymer-Lösung bei Anwesenheit von Beschleunigern oder Katalysatoren zugemischt werden.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß das Lösungsmittel Styrol ist.
  3. Verfahren gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß ungefähr 4 Gewichtsteile des Vinylharzes oder des ungesättigten Polyesters auf einen Gewichtsteil der Polybutadien/Styrol-Copolymer-Lösung zugemischt werden.
  4. Verfahren gemäß irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Polybutadien/Styrol-Copolymer-Lösung in dem Lösungsmittel eine solche Konzentration hat, daß eine sirupöse Fluidität erhalten wird.
  5. Verfahren gemäß irgendeinem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß das Verhältnis Polybutadien/Styrol-Copolymer zu Styrol ungefähr 20/70 ist.
  6. Verfahren gemäß irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Zusammensetzung organische Oxide, wie zum Beispiel Methyläthylketonperoxid enthält.
  7. Verfahren gemäß irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Vinyl- oder Polyesterharz unter den im Handel erhältlichen Zusammensetzungen von dem Typ:
    Harze vom Typ Polyester, abgeleitet von Orthophthalat oder Isophthalat;
    Epoxypolyvinylester
    ausgewählt wird.
  8. Verfahren gemäß Anspruch 7, dadurch gekennzeichnet, daß die Epoxyvinylester Vinylester auf der Basis von Novolak-Epoxy oder Diphenol-A-Epoxy oder bromiertem Diphenol-A-Epoxy und modifizierter Gummi-Epoxy sind.
  9. Verfahren gemäß irgendeinem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß ein Mörtel verwendet wird, der zwischen 1 und 20 Teilen Sand lauf 1 Teil der Zusammensetzung enthält.
  10. Verfahren gemäß Anspruch 9, dadurch gekennzeichnet, daß zwischen 4 und 9 Teilen Sand auf 1 Teil der Zusammensetzung verwendet werden.
EP95940918A 1994-12-06 1995-12-06 Verfahren zum schützen von oberflächen gegen korrosive substanzen Revoked EP0796299B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9401110 1994-12-06
BE9401110A BE1008933A3 (fr) 1994-12-06 1994-12-06 Procede de protection de surfaces contre les matieres corrosives et produits a base de resines a cet effet.
PCT/BE1995/000113 WO1996017895A1 (fr) 1994-12-06 1995-12-06 Procede de protection de surfaces contre les matieres corrosives et produits a base de resines a cet effet

Publications (2)

Publication Number Publication Date
EP0796299A1 EP0796299A1 (de) 1997-09-24
EP0796299B1 true EP0796299B1 (de) 2000-03-15

Family

ID=3888526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95940918A Revoked EP0796299B1 (de) 1994-12-06 1995-12-06 Verfahren zum schützen von oberflächen gegen korrosive substanzen

Country Status (10)

Country Link
EP (1) EP0796299B1 (de)
JP (1) JPH10510301A (de)
AU (1) AU724596B2 (de)
BE (1) BE1008933A3 (de)
CA (1) CA2206372A1 (de)
DE (1) DE69515692T2 (de)
MX (1) MX9704178A (de)
NZ (1) NZ297358A (de)
RU (1) RU2158283C2 (de)
WO (1) WO1996017895A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10025356A1 (de) * 2000-05-23 2001-11-29 Gewerk Keramchemie Hartgummi-Beschichtungen für den Korrosionsschutz
DE102011078616A1 (de) * 2011-07-04 2013-01-10 Maretex Gmbh Korrosionsbeschichtung
CN104673003B (zh) * 2015-02-27 2017-03-01 福州东冶能源科技有限公司 Df建筑塔吊专用防腐蚀涂料

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB785032A (en) * 1954-03-11 1957-10-23 Degussa Self-hardening surface coating compositions
GB1105280A (en) * 1965-04-20 1968-03-06 Packaging Corp America Coating compositions
US3639653A (en) * 1969-03-19 1972-02-01 British Columbia Res Council Protective coating for metal and wood surfaces
JPS5767618A (en) * 1980-10-15 1982-04-24 Matsushita Electric Works Ltd Unsaturated polyester refin composition
JPS5943069A (ja) * 1982-09-03 1984-03-09 Nippon Steel Corp 嫌気硬化型防食被覆材
DE3719634A1 (de) * 1987-06-12 1988-12-29 Basf Ag Hochfuellbare ls-up-harzformmasse mit guter pigmentierbarkeit
JPH0826117B2 (ja) * 1988-07-26 1996-03-13 日立化成工業株式会社 不飽和ビニルエステル樹脂組成物およびその増粘組成物
DE3931998A1 (de) * 1989-09-26 1991-04-04 Basf Ag Verfahren zur herstellung von schwarz eingefaerbten, haertbaren polyesterformmassen

Also Published As

Publication number Publication date
MX9704178A (es) 1997-09-30
JPH10510301A (ja) 1998-10-06
RU2158283C2 (ru) 2000-10-27
NZ297358A (en) 1999-06-29
DE69515692T2 (de) 2000-09-28
AU724596B2 (en) 2000-09-28
CA2206372A1 (en) 1996-06-13
EP0796299A1 (de) 1997-09-24
BE1008933A3 (fr) 1996-10-01
DE69515692D1 (de) 2000-04-20
AU4250196A (en) 1996-06-26
WO1996017895A1 (fr) 1996-06-13

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